Hi, can anyone tell me how to plot and calculate the pressure coefficient around a body in CFX-post so that in every defined location the Cp plot will be created?Thanks

Write a CEL expression for Cp, then create a new variable with your expression. Your variable can be plotted as any other variable.

-Robin

thanks Robine, I try

[camoesas]

Hello,

I also want to plot Cp along a Line. Thus I have written the following equation:

(Pressure-(Pressure@Inlet))/(0.5*Density@Inlet*Velocity@Inlet^2)


But i get this odd error Message:
"...The following unrecognised names were referenced: Density, Pressure, Velocity."


Altough I got these Names from the "right-click-insert-menu"
Anybody knows where the problem is?

Thanks!

[ghorrocks]

Have a look in the CFX documentation, in the reference guide, for CEL expressions. This will give you the variable names. You have simply not used the correct variable names.

[zullah]

Hi camoesas
Could you please tell me if you were able to get the above CEL expression to work. I am facing the same problem. Your help will be very much appreciated.

[ghorrocks]

The errors camoesas made are trivial - look in the documentation and you will work it out. For instance he should replace "Density@Inlet" with massFlowAve(Density)@Inlet, and other simple changes.

[zullah]

Thanks ghorrocks.

[rshadpoorian]

Originally Posted by Robin
;78900

Write a CEL expression for Cp, then create a new variable with your expression. Your variable can be plotted as any other variable.

-Robin

would u plz give me help on creating Cp expression in CEL?